/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 09:33:48,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 09:33:48,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 09:33:48,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 09:33:48,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 09:33:48,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 09:33:48,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 09:33:48,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 09:33:48,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 09:33:48,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 09:33:48,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 09:33:48,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 09:33:48,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 09:33:48,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 09:33:48,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 09:33:48,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 09:33:48,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 09:33:48,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 09:33:48,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 09:33:48,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 09:33:48,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 09:33:48,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 09:33:48,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 09:33:48,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 09:33:48,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 09:33:48,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 09:33:48,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 09:33:48,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 09:33:48,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 09:33:48,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 09:33:48,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 09:33:48,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 09:33:48,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 09:33:48,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 09:33:48,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 09:33:48,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 09:33:48,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 09:33:48,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 09:33:48,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 09:33:48,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 09:33:48,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 09:33:48,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 09:33:48,392 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 09:33:48,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 09:33:48,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 09:33:48,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 09:33:48,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 09:33:48,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 09:33:48,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 09:33:48,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 09:33:48,393 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 09:33:48,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 09:33:48,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 09:33:48,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:33:48,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 09:33:48,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 09:33:48,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 09:33:48,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 09:33:48,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 09:33:48,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 09:33:48,553 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 09:33:48,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-01-18 09:33:48,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bebbde4c6/e170792ba4294fc0a147c6514273dd76/FLAG8f108cde3 [2022-01-18 09:33:48,963 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 09:33:48,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-01-18 09:33:48,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bebbde4c6/e170792ba4294fc0a147c6514273dd76/FLAG8f108cde3 [2022-01-18 09:33:48,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bebbde4c6/e170792ba4294fc0a147c6514273dd76 [2022-01-18 09:33:48,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 09:33:48,988 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 09:33:48,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 09:33:48,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 09:33:48,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 09:33:48,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:33:48" (1/1) ... [2022-01-18 09:33:48,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5b9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:48, skipping insertion in model container [2022-01-18 09:33:48,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:33:48" (1/1) ... [2022-01-18 09:33:48,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 09:33:49,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 09:33:49,150 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 09:33:49,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-01-18 09:33:49,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:33:49,288 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 09:33:49,296 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 09:33:49,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-01-18 09:33:49,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:33:49,344 INFO L208 MainTranslator]: Completed translation [2022-01-18 09:33:49,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49 WrapperNode [2022-01-18 09:33:49,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 09:33:49,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 09:33:49,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 09:33:49,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 09:33:49,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,380 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-01-18 09:33:49,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 09:33:49,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 09:33:49,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 09:33:49,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 09:33:49,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 09:33:49,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 09:33:49,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 09:33:49,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 09:33:49,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (1/1) ... [2022-01-18 09:33:49,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:33:49,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:33:49,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 09:33:49,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 09:33:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 09:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 09:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 09:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 09:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 09:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 09:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 09:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-01-18 09:33:49,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-01-18 09:33:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 09:33:49,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 09:33:49,465 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 09:33:49,536 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 09:33:49,537 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 09:33:49,676 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 09:33:49,680 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 09:33:49,680 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-18 09:33:49,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:33:49 BoogieIcfgContainer [2022-01-18 09:33:49,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 09:33:49,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 09:33:49,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 09:33:49,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 09:33:49,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 09:33:48" (1/3) ... [2022-01-18 09:33:49,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2508d68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:33:49, skipping insertion in model container [2022-01-18 09:33:49,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:33:49" (2/3) ... [2022-01-18 09:33:49,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2508d68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:33:49, skipping insertion in model container [2022-01-18 09:33:49,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:33:49" (3/3) ... [2022-01-18 09:33:49,687 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-01-18 09:33:49,690 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 09:33:49,690 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 09:33:49,690 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 09:33:49,690 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 09:33:49,709 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,709 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,709 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,709 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,709 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,710 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,710 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,710 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,710 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,710 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,710 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,710 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,711 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,711 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,711 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,711 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,712 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,712 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,712 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,712 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,714 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,714 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,714 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,715 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,715 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,715 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:33:49,718 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-18 09:33:49,745 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:33:49,750 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 09:33:49,750 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 09:33:49,757 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions, 156 flow [2022-01-18 09:33:49,775 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 132 states, 131 states have (on average 1.6870229007633588) internal successors, (221), 131 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:49,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 131 states have (on average 1.6870229007633588) internal successors, (221), 131 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-18 09:33:49,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:49,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:33:49,783 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 09:33:49,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:49,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1033982442, now seen corresponding path program 1 times [2022-01-18 09:33:49,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:49,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250214274] [2022-01-18 09:33:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:49,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:33:49,879 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 09:33:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 09:33:49,922 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 09:33:49,923 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 09:33:49,924 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 09:33:49,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 09:33:49,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-18 09:33:49,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 09:33:49,928 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 09:33:49,931 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 09:33:49,931 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 09:33:49,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 09:33:49 BasicIcfg [2022-01-18 09:33:49,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 09:33:49,978 INFO L158 Benchmark]: Toolchain (without parser) took 990.24ms. Allocated memory was 354.4MB in the beginning and 434.1MB in the end (delta: 79.7MB). Free memory was 299.1MB in the beginning and 357.3MB in the end (delta: -58.2MB). Peak memory consumption was 20.8MB. Max. memory is 16.0GB. [2022-01-18 09:33:49,979 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory was 317.5MB in the beginning and 317.4MB in the end (delta: 69.1kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:33:49,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.77ms. Allocated memory was 354.4MB in the beginning and 434.1MB in the end (delta: 79.7MB). Free memory was 298.9MB in the beginning and 399.2MB in the end (delta: -100.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.0GB. [2022-01-18 09:33:49,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.76ms. Allocated memory is still 434.1MB. Free memory was 399.2MB in the beginning and 397.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:33:49,983 INFO L158 Benchmark]: Boogie Preprocessor took 18.26ms. Allocated memory is still 434.1MB. Free memory was 397.1MB in the beginning and 396.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:33:49,984 INFO L158 Benchmark]: RCFGBuilder took 280.82ms. Allocated memory is still 434.1MB. Free memory was 396.1MB in the beginning and 382.4MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 09:33:49,984 INFO L158 Benchmark]: TraceAbstraction took 294.61ms. Allocated memory is still 434.1MB. Free memory was 381.4MB in the beginning and 357.3MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2022-01-18 09:33:49,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory was 317.5MB in the beginning and 317.4MB in the end (delta: 69.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 355.77ms. Allocated memory was 354.4MB in the beginning and 434.1MB in the end (delta: 79.7MB). Free memory was 298.9MB in the beginning and 399.2MB in the end (delta: -100.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.76ms. Allocated memory is still 434.1MB. Free memory was 399.2MB in the beginning and 397.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.26ms. Allocated memory is still 434.1MB. Free memory was 397.1MB in the beginning and 396.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 280.82ms. Allocated memory is still 434.1MB. Free memory was 396.1MB in the beginning and 382.4MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 294.61ms. Allocated memory is still 434.1MB. Free memory was 381.4MB in the beginning and 357.3MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-18 09:33:50,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...